Yes...they did choose a lot.
But the bulk of their team were considered far superior.
Remember, Border had been building this team since 1986.
S Waugh, Geoff Marsh and Merv Hughes were young, but had a couple of years under their belts. Mark Taylor, Ian Healy were relatively new to the team still. David Boon and Dean Jones would be the experienced bats with Border, but weren't yet the batting legends they became by the end of their careers.
Alderman and Lawson would be considered experienced, decent bowlers but hardly world beaters...though Alderman would go on to have a massive 1989 campaign.
Of course Greg Campbell was there, and controversially not Mike Whitney. Trevor Hohns the spinner.
England would have been licking their lips. At home. Holding the Ashes. The nucleus around Gower, Gooch, Gatting, Botham. Few, if any, even in Australia, predicted an Aussie Ashes series win or even the dominance shown. Easy to think of Taylor, Healy and Waugh as legends now, but it wasn't seen like this prior to 1989 Ashes tour, here or there.
England only took 67 wickets in 6 Tests (potentially 120 wickets available).
http://en.wikipedia.org/wiki/1989_Ashes_series
Anyway...